[UPD] Added api to create Library

app/controller/__init__.py

@@ -26,6 +26,13 @@ class LibraryController:
     def __del__(self):
         self.session.close()
 
+    def __enter__(self):
+        return self
+    
+    def __exit__(self, *exc):
+        del(self)
+        return False
+
     @property
     def data(self):
         return self._library